Ho bisogno del parere di esperti per poter arrivare ad avere la CPU a 4GHz con il bus a 200Mhz (200 X 20) ma ho difficoltà a superare i 165Mhz di bus. Cosa sbaglio?

Cooler: Noctua NH-U12P
Scheda madre: EVGA X58 3X SLI Classified (E760)
CPU: Intel i7-980X
Ram: 3X2Gb Kingston HyperX KHX2000C9AD3T1K3/6GX

Per ora ho raggiunto i 4Ghz con questa configurazione:

Frequency Control:
CPU Clock Ratio ( 27 )
CPU Host Frequency (Mhz) ( 150 )
MCH Strap ( Auto )
CPU Uncore Frequency (Mhz) ( 3307Mhz { 22X } )
CPU Clock Skew ( 0 ps )
Spread Spectrum ( Disabled )
PCIE Frequency (Mhz) ( 105 )


Memory Feature:
Memory Speed ( Standard )
Memory Control Setting ( Enabled )
Memory Frequency ( 1067Mhz / 2:8 )
Channel Interleave Setting ( 6 Way )
Rank Interleave Setting ( 4 Way )
Memory Low Gap ( 2.5 )
tCL Setting ( AUTO )
tRCD Setting ( AUTO )
tRP Setting ( AUTO )
tRAS Setting ( AUTO )
tRFC Setting ( AUTO )
Command Rate ( AUTO )
tRL ( +0 )

Voltage Control:
EVGA VDroop Control ( Without VDroop )
CPU VCore ( 1.3375 )
CPU VTT Voltage ( +325 )
CPU PLL VCore ( 1.650 )
IOH PLL VCore ( 1.350 )
DIMM Voltage ( 1.65 )
DIMM DQ Vref ( +100mV )
QPI PLL VCore ( 1.40 )
IOH VCore ( Auto )
IOH/ICH I/O Voltage ( Auto )
ICH VCore ( AUTO )
VTT PWM Frequency ( 610 KHZ )
CPU PWM Frequency ( 1333 KHZ )
CPU Impedance ( Less )
QPI Signal Compensation ( Less )

CPU Feature:
Intel SpeedStep ( Disabled )
Turbo Mode Function ( Enabled )
CxE Function ( Disabled )
Execute Disable Bit ( Disabled )
Virtualization Technology ( Enabled )
Intel HT Technology ( Disabled )
Active Processor Cores ( All )
QPI Control Settings ( Enabled )
QPI Link Fast Mode ( Enabled )
QPI Frequency Selection ( 6.400 )
OC Recovery ( Enabled )
Turbo Performance ( Disabled )

PnP/PCI:
PnP/PCI (PCI Express)
Maximum Payload Size ( 4096 )

Power Management Setup:
ACPI Suspend Type ( S3 )
HPET Support ( Enabled )
HPET Mode ( 64-bit )

Saluti.